Bosch Rexroth | 4WEH10J4X6EW110N9K4
4WEH10J4X/6EW110N9K4
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The 4WEH10J4X/6EW110N9K4 is manufactured by Bosch Rexroth for the WEH Directional Spool Valves series and is applied in hydraulic automation to route pressure and return flow between actuators. Its nominal size is NG 10, which defines the valve cavity and flow section. The porting pattern follows ISO 4401-05-05-0-05 so it seats on standard subplates without adapters. A maximum operating pressure of 280 bar is permitted at ports P, A, and B, while a rated flow of 160 l/min is attainable under NG 10 J conditions at that pressure. Actuation occurs through a 4WE 6E pilot control valve, and the pilot oil is supplied externally through port X to isolate control pressure from the main circuit. The solenoid coil is wound for 110 V AC at 50/60 Hz, and wiring is completed by a DIN EN 175301-803 plug coded K4.
The hydraulic fluid must meet cleanliness class ISO 4406 20/18/15 to protect the precision spool and pilot stages from wear. A concealed manual override, identified by code N9, lets maintenance personnel shift the spool when electrical power is unavailable. Pilot pressure may rise to 250 bar, while reliable switching requires at least 12 bar at the external pilot port. Port T can withstand 280 bar during blocked return situations, and drain port Y is rated for 160 bar in alternating-current service. Installation uses four M6 × 45 screws conforming to ISO 4762, and each screw is tightened to 12.5 Nm to secure the valve body without deforming the sealing edges.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Coil Voltage
110 V AC (50/60 Hz)
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Max Port T Pressure
280 bar
Max Port Y Pressure (ac)
160 bar
Min Pilot Pressure (x External)
12 bar
Mounting Screws
M6 x 45 (ISO 4762)
Mounting Torque
12.5 Nm
Nominal Size
NG 10
Pilot Control Valve Type
4WE 6E
Pilot Oil Supply
External (X)
Porting Pattern
ISO 4401-05-05-0-05
Qv Max (ng10, J, 280 Bar)
160 l/min
1620 Old Apex Road
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